Ventriculoperitoneal (VP) Shunt Surgery is a procedure to drain excess cerebrospinal fluid (CSF) collected in the brain’s ventricles and relieve pressure on the brain due to fluid accumulation.
The procedure is performed when there is too much pressure in the brain caused due to CSF accumulation, a medical condition called hydrocephalus. It mostly occurs in babies and older adults.
Normally, cerebrospinal fluid flows through the ventricles of the brain, thereby immersing the brain and spinal cord in it and eventually gets absorbed in the blood. When this normal flow is disrupted, it causes fluid accumulation and puts harmful pressure on brain tissues. VP Shunt drains fluid from the brain to other parts of the body where the fluid is absorbed.
Ventriculoperitoneal Shunt Surgery is also called Cerebrospinal Fluid Shunt Surgery or VP Shunt Surgery.
The surgery is recommended to patients with swelling, cysts, tumors, or inflammation in the brain due to excess buildup of cerebrospinal fluid. Excess fluid occurs mainly due to
Excess production of CSF
Inability of blood vessels to absorb the fluid
Blockages that restrict the flow of the fluid
Common indications include visible increase in the size of head, frequent headaches and seizures, poor appetite, loss in memory and poor co-ordination between thoughts and actions.
The surgeon will instruct to
Conduct imaging tests of the brain like CT Scan and MRI to determine the exact location of excess fluid
Stop blood thinners, at least 10 days before the procedure
Fast for 6 hours prior to the procedure
The procedure is performed under general anesthesia by an experienced neursurgeon, and generally takes around 90 minutes.
During the surgery, the surgeon will
Put a small cut behind the ear and another in the belly, after administering the anasthesia.
Drill a small hole in the skull and pass a catheter into a ventricle of the brain.
Another catheter is placed under the skin behind the ear and is made to travel to the chest and abdomen.
A pump (valve) which is attached to both catheters is placed behind the ear.
When the pressure in the skull increases, this pump will help automatically remove the fluid into the belly area.
After the procedure is complete, the patient may be required to stay in the hospital to upto a week. The doctor and his team closely monitors the patient’s vitals.
The patient is taught how to take care of the shunt at home and how to prevent any infection from developing.
In babies, the shunt has to be replaced after 2 years while in older adults, it has to be replaced after 8 years.
RISK AND COMPLICATIONS
VP Shunt Surgery might have the following risks and complications:
Leakage of the fluid under the skin
Bowel perforation (holes in the intestines)
Bleeding, swelling or blood clot in the brain
Malfunction of the shunt may cause fever, frequent headache, fatigue and infection.
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